Do you know what connects Edwin Hubble’s theory for an expanding universe and Albert Einstein’s cosmological constant? The ...

Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

China has quietly solved a problem that only becomes obvious once you try to live and work off-world: clocks on the moon do ...

The man was the smartest person on the planet. On his birthday, why not celebrate by quoting him and sounding brilliant?

The Princeton that Albert Einstein knew in 1933 was sharply divided by the color line; a long-established border—marked by Witherspoon, John, and Jackson Streets—separated its predominantly Black ...

The German theoretical physicist, author of the theory of relativity, left behind a legacy of powerful quotations that remain ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

In July 1930, Rabindranath Tagore visited Albert Einstein in Caputh, near Berlin, at his summerhouse. The meeting of the two ...

The collection of items belonged to Albert Einstein's sister, Maja Einstein. Albert Einstein sits with page of equations in his home library. Alfred Eisenstaedt/Pix Inc./The LIFE Picture ...